R. Jones et al., METHYL DIBENZO[A,F]CYCLOPROPA[CD]PENTALENE-8B-CARBOXYLATE, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 1262-1263
The title molecule, C24H18O2, is the sole product of photolysis of a p
henyl-methoxycarbonyl-dibenzobarrelene derivative, has a dibenzosemibu
llvalene structure, 8c-phenyl and 8b-methoxycarbonyl substituents, and
normal bond lengths and angles.